PAGE @3

UnCrassiied

RADIATION SOURCES REMOVED FROM INVENTORY.

Sumber and Approximate
Source ‘Type of Strength

Location No, Source (s) (willicurie) Storage
C-340 Powder Unit 18-19-20 3) co twetary 0.65 Lead cases
6th Floor
€-340 Powder.Unit 21-22-23 16) co (etar) 0.65 Lead Cases
5th Floor 24-25-26
©-420 HP Scrubber. 20 a Mee 48 Lead Chamber of Ohmart Source
Roof unit.
€-420 Control Room Q a) 7?8pq (setts) 0.2 Ohmart Density Neter
Level ro)
C-710 Radiochenistry Lab eo) a) sr (iquiay 16 Glass Bottle in 1-inch wooden

=| block

60

C-720 Instrument Office i=) 1) couietal) on Lead Pot

27 a cotetaly 0.14 Lead Pot
C-721 Calibration Room 2 2) oo greta) 54.71 Lead Pot
(Health Physics &
Instrument Maint. 60,
have keys) 3 a ‘Co (Metal) 1.8 bead Pot

os, 1

6-7-8 “Gl Seo (Metal) O68 Lead Pot

Unclassified



a Se puce ot
Unclassified

INTERNAL CORRESPONDENCE

NUCLEAR DIVISION POST OFFICE BOX 1410, PADUCAH, KENTUCKY 42001

Te (Nem) D. D, Barclay Owe July 19, 1977
Divister oH. D. Bewley
tention = C. Cy Hopkins Originating Dept.
G. T Hull
B. T, Xraemer Anecering Vetta dete
J. R. Merriman
Corte Re Millican tuipe “Removal of Radiation
C. C, NeDowell Sources from Inventory
- De K, Riley
A. M. Tuboleky
A. K. Yancy
B. G. Yates
HP File - RC

Listed in Table I are twenty-five encapsulated r. Lon. es no longer
in use. These sources have been jallon cone!

and deposited in $b0-C-404 solid gadtoact sve waste GTspoasl_Arep: The
approximate location is ted by ‘Chemical Operations.

Approximately 200 mci of material waa disposed of, 135 mCi deleted from
if

inventory and 65 not_of GFIETaS| in a mali instrument not ep inventory .
. The total activity in years will be itely 30 mCi. [ [/
‘The maximum gurface reading at the drum was So-nefoe ond 7 me/ne ot 3-fest :

The drum was deposited in the storage area several outeide NL me

edge and is totally shielded by other waste material. /

Health Physics

KaD:ce COPIED

(Derivative Clasaiter) (umber) (Data

i) (Organization) Te ATOM
men motets tll, ee HE
d UNCLASSIFIED

wicussren-norvew_Lintelassifie



PAGE 84

unclassified

Wumber and Approximate
Source “Type of Strength
Location Wo. Source(s) (Mitlicurie) Storage
€-721 Calibration Rm 13-14 (2) 7?6pq (gaits) 1.0 Lead Pot
Bealth Physics &
9 1) 0 retary 0.65 Lead, Pot.
66,
28 a) Co (Liquid) 0.34 Lead Pot
226, .
‘ 3 ay fa 0.5 Sealed in Alphatron Gauge =
i‘ Q
: 34 a — co (etal) 0.65 Lead Case

g
iS
=)

Unclassified


eee cP @oo2/003

: :
1
———
To: Foiey, Phillip W.
Subject: Dose Reconstruction at PGDP
Phillip,

‘When we discuss dose and exposure at PGDP, it is very difficult to qualify and quantify any data from the past. During the
PEM up rating from 1975 to 1960, Instrument Mechanics routinely used high radiation sources to determine functionality of
the radiation monitoring systems in the plant. We usad a fishing pole to suspend the Cobatt 60 and other sources in front
of the 2 MR detectors, argon gamma graphs, and CAS clusters. The standard practice when using the high radiation
source from the pipe well and lead pot was to remove your badge and put it in the truck. We were told by our

that it would mess up our dose monitoring for the period and we needed fo keep the badge away from the sources. We
had to retrieve the source from the lead pot and attach ito the fishing pole with our bare hands while leaning over the pot.
Al this detail is to ilustrate that retrievable dose accumulation data is-at best unretiable, and in most cases demonstrably
Tow. | personally performed these jobs and there are other 1&C mechanics that can verify this as fact. Attached Is @ copy

ofthe source inventory from 1979,
|
Hypo |



TS ea PAGE @2

unctassitied

4

; at
MEMO © ~_AVOID ORAL INSTRUCTIONS Date hau 7 1979
To A
_D-K. Ricev 7
2 Heo The ATO. ep previine
ta B we TA.

#(- 300 meieuares Dane wan lw L960

42-300 Micetcer ares ie me ly wv (S70
These Wms SEATED Qv7e Titanium Pres tw sroe Meta
loup j .

Gu Tear 7% 6 lw A =
(he ET L Fuce er Wire Anaans

chusine We Mivg Wredentor
C—O :
Signed CL Basses,

son-a66
12386 10-70) gs

for , ‘UCNI Gy:

(Dotvative Cisssiber) ro
aoc Records MgmgUSEG

mewn popiceseeene Oly d-.{OPIED | -

_ Wor -|. .
(Date) : : i

UNCLASSIFIED'- NOT UCNI

BAS

Date

 ynclassified — SERSAeAn
| ; UNCLASSIFIED.



no
SEEC Bert | ifufey

RCSB Mamta —
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TC RE She expne ~ Rancher ,
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— fern parity 0 MUP FPP
“e h Film Rody +
2. 5 Oe a.

wok Fasieds thigh Ryorts
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C® Fy Header boat ed

@ Cook aden ~ Meter por, pat Hotel =

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\.
: Maximum Gamma _—
Source Type of Strength Radiation @ surface
Location £ Container
~ —No_ Source (s) iMillicurie) Storage
c-400 office -° 37 (2) 7?5Rq (rn Fotl) Qa Alnor Dey Pointer (c-9905} 32
6-400 cylinder - 40 (1) -?7®pa (an Foti) a. Alnor Dew Pointer (e-636s1 25
wash~area . : a !
2-420 HF scrubber 35 (1) 137¢5 1500 Lead Chamber of Ohmart Meter’ 5
iaide : : i
sAastosien Engi $8F 1) 41 anne 50 Sealed in Protaprobe | 10 -
ar 147es 1a Soil Density Meter | y
3-71f: Radio~ 29% (1) ?8pq (gaits) 5 Lead Case in Sling i . 150 g
Chethistry Lab a Hl
2-720 Technical 1s (1) 226, (Salts) a.l Alphatron Gauge on Induction Furnace 45
Asst. Lab. | .
1-720 Instrument 38 (1) 137 Gq 100 Gamma Survey Instrument Calibrater 25-
Office :
i720, Industrial 42 (1) 226n, (In Foil) oO. Alnor Dew Pointer (C-6368)
X-Ray 43° 5 ?78Rq (rn Foti) O.2 Alnor Dew Potnter (c~25994)
45 (1) ©%co (eta) 1300.0. Chea Pow) : i
1-721 Calibration, 1 (1) ee? (tetany) 9.39 4 SG .
Room (Health 4.1) Co (Metal) . 4.00
s* (2) ?2pa (sats) 10 Gteel Encased Lead POSS 200
11 1) $%co (meter) 41.82
16 (1) Sco Metal) 85.48 — . :
32). Go Gtetail 03.0 Cree Weil) 20
39 (1) co cmetar) 785.54 ; ,
32 «(9), 6G (Metal Pellets) 4.93 : Lead Pot lo
41) 7%6pa (rn Foil) O12 Alnoz Dew Pointer (¢-6367) 25
aa (1) 2375 10,0 Ohmart Levelart 100 Level Meter 4

00/2008

COPIED
; Unclassifte